Restoring your database is fairly easy. You just need to navigate to your MySQL management software and run the backup SQL schematic. Most servers have PHPMyAdmin or Adminer installed. Alternatively
you can use other good database software. Below are some example:
HeidiSQL (Portable SQL management. Recommended for Windows)
Adminer (Web based MySQL management in a single PHP file. No longer maintained)
AdminerEvo (Fork of Adminer)
PHPMyAdmin (Installed on many servers as the default database software. PHP based)
MySQL Workbench (Alternative Windows based software from the MySQL creators)
Database Beaver(Free database management software for Windows)